Salty Coals as Natural Insertion Compounds

Deposits of coals with high content of alkaline salts (salty, saline coals (SC) were found in many countries of the World. Successful overcoming their usage difficulties and the decision here a range of ecological problems are possible only at the getting fundamental knowledge about their structure and physical-chemical peculiarities. It was interesting to examine coals with elevated sodium and chlorine content as natural (e.g. formed m "natural laboratory " during billions years) insertion compounds (IC). Last decades the interest to study of poly-component artificial systems within which different nature substances are lest connected by chemical bonds is grown very much. These systems, IC - consisting of two or more components, are enveloping the wide range of compositions, including substances with adsorbed molecules, solid solutions, metal-polymers. composite materials, etc. Any case, in these systems properties of parent components are changed significantly and materials with new' or modified properties are created. Interactions within insertion compounds are determined by whole range of forces - from ion-bonds to dispersion forces. Only covalent bond isn't met within IC in pure form. Unusual properties of SC, such as: high electric conductivity, compact packing of polyarene layers in psevdo-cristalline lattice at high humic acids yield (HAY), elevated content of multitude micro-elements have led us to necessity the explaining latter from point of view for IC theory. For comparison non- salty (NS) coals the same genetic type (Pavlograd deposit) and brown coals (Alexandriya deposit) were chosen.